Texas caviar for 12: black-eyed peas, corn and peppers in a tangy dressing. No cooking. Mix it the night before, serve it on ice. About 25 min of work.
Sausage balls for 12 (about 48): shape them the night before, bake at home to 160°F and serve warm within 2 hours. About 25 minutes of work, 50 in all.